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A new approach for mitigating A/D conversion requirements in software radio base stations

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3 Author(s)
Hong Nie ; Dept. of Electr. & Comput. Eng., British Columbia Univ., Vancouver, BC, Canada ; Salkintzis, A.K. ; Mathiopoulos, P.T.

In this paper we present a novel method, which significantly relaxes the stringent ADC requirements encountered in software radio applications. By digitizing a residual signal, instead of the original received wideband signal, we show that the high dynamic signal range at the input of the ADC can be significantly reduced. Such reduction is accomplished by predicting the largest power signal and subsequently subtracting a portion of it from the overall received signal. Employing AR and PAR prediction algorithms, using several well-known modulation schemes, we obtain various computer-simulated performance evaluation results, which justify the effectiveness of the proposed methodology

Published in:

Vehicular Technology Conference, 1999. VTC 1999 - Fall. IEEE VTS 50th  (Volume:5 )

Date of Conference:

1999

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